Celestial Holography and Self-Dual Einstein Gravity (April 17, 2025)

This one-hour lecture by David Skinner explores a variant model of celestial holography that yields a theory of self-dual Einstein gravity in four dimensions. Delve into the relationship between twisted holography and twistor theory, comparing the original Burns model of Costello-Paquette-Sharma with a new approach involving a CY 5-fold that admits a K3 fibration over twistor space. Learn about the implications for gravitational theory and how this work advances our understanding of celestial holography. The presentation is based on work in progress with Roland Bittleston, Kevin Costello, and Atul Sharma, and is hosted by the Simons Foundation.